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Question
Bdellovibrio species are ________ cells that replicate in the ________.A) symbiotic / gills of clams
B) lithotrophic / deep subsurface
C) predatory / periplasmic space
D) denitrifying / sediments of freshwater lakes
Answer
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B) influenza.
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Which of the following statements about chlamydial infections is TRUE?
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The Spanish flu of 1918 was caused by an ________ influenza virus.
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B) prevalence / mortality
C) mortality / morbidity
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Cholera is an example of a pandemic disease that
A) has multiple wild animal reservoirs and is thus difficult to eradicate.
B) spreads from a common source and could be controlled with adequate clean water and waste sanitation measures.
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A) clonal anergy
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An individual usually expresses ________ structurally distinct allele(s) that encode class I MHC proteins.
A) one
B) two
C) four
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